| 1 | /* |
| 2 | * Purpose: demonstrate the successful operation of the register save mechanism, |
| 3 | * in which the caller saves the registers that will be clobbered, and restores |
| 4 | * them after the call. |
| 5 | */ |
| 6 | |
| 7 | .text |
| 8 | .globl _start |
| 9 | |
| 10 | _start: |
| 11 | allocframe(#8) |
| 12 | { |
| 13 | r16 = #47 |
| 14 | r17 = #155 |
| 15 | } |
| 16 | memd(sp+#0) = r17:16 |
| 17 | { |
| 18 | r16 = #255 |
| 19 | r17 = #42 |
| 20 | } |
| 21 | { |
| 22 | deallocframe |
| 23 | r17:16 = memd(sp+#0) |
| 24 | } |
| 25 | { |
| 26 | p0 = cmp.eq(r16, #47) |
| 27 | p0 = cmp.eq(r17, #155); if (p0.new) jump:t pass |
| 28 | jump fail |
| 29 | } |